MPQ3522
20V, 2A, Ultra-Compact,
Low Quiescent Current, Synchronous
Step-Down Converter, AEC-Q100 Qualified
DESCRIPTION
FEATURES (continued)
The MPQ3522 is a configurable-frequency
(350kHz to 2.5MHz), synchronous step-down
switching converter with an integrated, internal
high-side MOSFET (HS-FET) and low-side
MOSFET (LS-FET). The device provides up to
2A of highly efficient output current (IOUT) with
peak current mode control.
•
Increases Battery Life:
o 1μA Shutdown Supply Current (ISD)
o 20μA Sleep Mode Quiescent Current
(IQ)
o Advanced Asynchronous Modulation
(AAM) Mode Increases Efficiency under
Light Loads
o Integrated 70mΩ High-Side MOSFET
(HS-FET) and 50mΩ Low-Side
MOSFET (LS-FET)
Optimized for EMC/EMI:
o Frequency Spread Spectrum (FSS)
Modulation
The wide 3.3V to 20V input voltage (VIN) range
accommodates
a
variety of step-down
applications in automotive input environments. A
1μA shutdown current (ISD) allows the device to
be used in battery-powered applications.
•
•
High power conversion efficiency across a wide
load range is achieved by scaling down the
switching frequency (fSW) under light-load
conditions to reduce the switching and gate
driver losses. An open-drain power good (PG)
signal indicates whether the output voltage (VOUT
is within 94.5% to 105.5% of its nominal voltage.
o Symmetric VIN Pinout
o CISPR25 Class 5 Compliant
o 350kHz to 2.5MHz Configurable
Switching Frequency (fSW)
o MeshConnect™ Flip-Chip Package
Additional Features:
o Power Good (PG) Output
o Fixed Output Options (1): 1V, 1.8V, 2.5V,
3.0V, 3.3V, 3.8V, or 5V
o Over-Current Protection (OCP) with
Hiccup Mode
)
Frequency foldback prevents inductor current (IL)
runaway during start-up. Thermal shutdown
provides reliable, fault-tolerant operation. High
duty cycle and low-dropout (LDO) mode are
provided for automotive cold-crank conditions.
o Available in a QFN-12 (2mmx3mm)
Package with Wettable Flanks
The MPQ3522 is available in a QFN-12
(2mmx3mm) package.
APPLICATIONS
•
•
•
Automotive Infotainment
Automotive Clusters
Advanced Driver-Assistance Systems
(ADAS)
Industrial Power Systems
Power over Coax (PoC) Systems
FEATURES
•
Designed for Automotive Applications:
o Continuous Operation Up to 20V
o Supports 3.1V for Cold Crank
Conditions
•
•
o Low-Dropout (LDO) Mode
o Up to 2A of Continuous IOUT
o 65ns Minimum On Time (tON_MIN) and
Note:
1) Refer to the Ordering Information section on page 3 for details
regarding the fixed-output versions. Additional output voltages
may be available. Contact MPS for details.
50ns Minimum Off Time (tOFF_MIN
)
o -40°C to +150°C Operating Junction
Temperature (TJ) Range
o Available in AEC-Q100 Grade 1
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.
For MPS green status, please visit the MPS website under Quality
Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are
trademarks of Monolithic Power Systems, Inc. or its subsidiaries.
MPQ3522 Rev. 1.0
3/9/2023
MonolithicPower.com
1
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2023 MPS. All Rights Reserved.
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